Foldable trailer



FIG. 1 is a top perspective view of a foldable trailer;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is first side view thereof;

FIG. 4 is second side view thereof;

FIG. 5 is a front plan view thereof;

FIG. 6 is a rear plan view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is bottom plan view thereof.

The dashed broken lines in the figures illustrate the portions of the design that form no part of the claimed design. 

CLAIM The ornamental design for a foldable trailer, as shown and described. 